package Eserver;public class Product{private String productID, productName;private int quantity, price;Product(  String productID, String productName, int quantity, int price){   this.productID = productID;   this.productName = productName;   this.quantity= quantity;   this.price = price;}public String getProductID(){   // Retrieve product ID   return productID;}public String getProductName(){   // Retrieve product Name   return productName;}public int getQuantity(){   // Retrieve product quantity in stock   return quantity;}public int getPrice(){   // Retrieve product price   return price;}public String toString(){   // Used for displaying product details, the product ID is not shown   return productName + " "+ quantity + " " +price;}}